Features 【Vibration Speaker】The horn is all frequency effect, the bass is very strong, the equivalent of traditional loudspeaker 8 inch bass effect. 【360 ° frequency transmission】Sound penetration is strong, small size and convenient, latest innovation, break through tradition limitations, 360 ° frequency transmission. 【Very clear】Since there is no body standing wave, so all kinds of vocal music original, the sound quality of each sound frequency range is very clear. 【Suitable for】Suitable for computer, laptop, MP3, MP4, CD, mobile phone, and other equipment sound playback and sound expand. 【Quality assurance】Quality assurance, perfect after-sales system, worry-free shopping,if you have any questions, please contact us in time, reply within 24 hours. Features: 1.The horn is all frequency effect, the bass is very strong, the equivalent of traditional loudspeaker 8 inch bass effect. 2.Sound penetration is strong, small size and convenient,latest innovation, break through tradition limitations, 360 ° frequency transmission. 3.Since there is no body standing wave, so all kinds of vocal music original, the sound quality of each sound frequency range is very clear. 4.Suitable for computer, laptop, MP3, MP4, CD, mobile phone, and other equipment sound playback and sound expand. 5.Quality assurance, perfect after-sales system, worry-free shopping,if you have any questions, please contact us in time, reply within 24 hours. Specifications: Color: steel Impedance power(Optional): 4 Ω 25 w;  8 Ω 20 w Type: electrodynamic (moving coil) Shape: round Diaphragm material: non-paper Magnetic circuit form: internal magnetic type Frequency characteristics: full spectrum band (full range) Rated power: 25W Frequency response: 20HZ -- 20KHZ (kHz) Directivity: positive Sensitivity: 95 (dB/W) Noise ratio: 90 (dB) Harmonic distortion: 5 (TMD %) Size: 50 * 50 * 30 mm/1.97*1.97*1.18inch Weight: 268 g Package Included: 1 x  Vibration Speaker Package List